EESchema Schematic File Version 5
LIBS:neo900-cache
EELAYER 29 0
EELAYER END
$Descr A3 16535 11693
encoding utf-8
Sheet 7 25
Title "Modem Antennas"
Date "Intentionally Left Blank"
Rev ""
Comp ""
Comment1 "LOWER"
Comment2 ""
Comment3 ""
Comment4 "Xsheetnumber=8"
$EndDescr
Text Notes 5150 3050 0    70   ~ 0
50 Ohm
Text Notes 2350 2300 0    120  ~ 0
GPS LNA
Text Notes 950  5000 0    120  ~ 0
Antenna connector
Text Notes 3000 4600 0    70   ~ 0
tbd.
Text Notes 7000 5100 0    70   ~ 0
50 Ohm
Text Notes 7000 2750 2    120  ~ 0
GPS kill
$Comp
L neo900:C0402 C702
U 1 1 578B947C
P 4100 2850
F 0 "C702" H 4140 2890 50  0000 L CNN
F 1 "1n" H 4140 2720 50  0000 L CNN
F 2 "NeoFeet:C_0402" H 4130 3000 20  0001 C CNN
F 3 "" H 4100 2850 60  0001 C CNN
	1    4100 2850
	1    0    0    -1  
$EndComp
$Comp
L neo900:C0402 C701
U 1 1 578B9544
P 3100 4800
F 0 "C701" V 3150 4500 50  0000 L CNN
F 1 "DNP" V 3050 4550 50  0000 L CNN
F 2 "NeoFeet:C_0402" H 3130 4950 20  0001 C CNN
F 3 "" H 3100 4800 60  0001 C CNN
	1    3100 4800
	0    -1   -1   0   
$EndComp
$Comp
L neo900:C0402 C707
U 1 1 578B96D4
P 7450 6600
F 0 "C707" H 7490 6640 50  0000 L CNN
F 1 "1n" H 7490 6470 50  0000 L CNN
F 2 "NeoFeet:C_0402" H 7480 6750 20  0001 C CNN
F 3 "" H 7450 6600 60  0001 C CNN
	1    7450 6600
	1    0    0    -1  
$EndComp
$Comp
L neo900:C0402 C704
U 1 1 578B979C
P 6800 6600
F 0 "C704" H 6840 6640 50  0000 L CNN
F 1 "15p" H 6840 6470 50  0000 L CNN
F 2 "NeoFeet:C_0402" H 6830 6750 20  0001 C CNN
F 3 "" H 6800 6600 60  0001 C CNN
	1    6800 6600
	1    0    0    -1  
$EndComp
$Comp
L neo900:C0402 C705
U 1 1 578B9864
P 7100 6600
F 0 "C705" H 7140 6640 50  0000 L CNN
F 1 "100n" H 7140 6470 50  0000 L CNN
F 2 "NeoFeet:C_0402" H 7130 6750 20  0001 C CNN
F 3 "" H 7100 6600 60  0001 C CNN
	1    7100 6600
	1    0    0    -1  
$EndComp
$Comp
L neo900:C0402 C706
U 1 1 578B992C
P 7200 7550
F 0 "C706" H 7240 7590 50  0000 L CNN
F 1 "1n" H 7240 7420 50  0000 L CNN
F 2 "NeoFeet:C_0402" H 7230 7700 20  0001 C CNN
F 3 "" H 7200 7550 60  0001 C CNN
	1    7200 7550
	1    0    0    -1  
$EndComp
$Comp
L neo900:C0402 C703
U 1 1 578B9B84
P 6400 7950
F 0 "C703" H 6440 7990 50  0000 L CNN
F 1 "15p" H 6440 7820 50  0000 L CNN
F 2 "NeoFeet:C_0402" H 6430 8100 20  0001 C CNN
F 3 "" H 6400 7950 60  0001 C CNN
	1    6400 7950
	1    0    0    -1  
$EndComp
$Comp
L neo900:CONNECT-POINTN900-A P701
U 1 1 578B9EA4
P 1500 3150
F 0 "P701" H 1500 3250 60  0000 C CNN
F 1 "GNSS_RF" H 1600 3150 50  0000 L CNN
F 2 "NeoFeet:N900-SPRING-A" H 1490 2940 65  0001 L TNN
F 3 "" H 1500 3150 60  0001 C CNN
	1    1500 3150
	-1   0    0    -1  
$EndComp
$Comp
L neo900:CONNECT-POINTN900-A P702
U 1 1 578B9F6C
P 1500 3450
F 0 "P702" H 1500 3550 60  0000 C CNN
F 1 "GNSS_GND" H 1600 3450 50  0000 L CNN
F 2 "NeoFeet:N900-SPRING-A" H 1490 3240 65  0001 L TNN
F 3 "" H 1500 3450 60  0001 C CNN
	1    1500 3450
	-1   0    0    -1  
$EndComp
$Comp
L neo900:L0402 L703
U 1 1 578BA034
P 3200 2550
F 0 "L703" V 3142 2400 50  0000 L BNN
F 1 "8n2;LQW15AN8N2G00D" V 3300 1450 50  0000 L BNN
F 2 "NeoFeet:C_0402" H 3190 2340 65  0001 L TNN
F 3 "" H 3200 2550 60  0001 C CNN
	1    3200 2550
	0    1    1    0   
$EndComp
$Comp
L neo900:L0402 L701
U 1 1 578BA0FC
P 2500 3500
F 0 "L701" V 2441 3350 50  0000 L BNN
F 1 "DNP" V 2630 3350 50  0000 L BNN
F 2 "NeoFeet:L_0402" H 2490 3290 65  0001 L TNN
F 3 "" H 2500 3500 60  0001 C CNN
	1    2500 3500
	1    0    0    -1  
$EndComp
$Comp
L neo900:L0402 L702
U 1 1 578BA1C4
P 2800 5500
F 0 "L702" V 2741 5350 50  0000 L BNN
F 1 "DNP" V 2930 5350 50  0000 L BNN
F 2 "NeoFeet:L_0402" H 2790 5290 65  0001 L TNN
F 3 "" H 2800 5500 60  0001 C CNN
	1    2800 5500
	1    0    0    -1  
$EndComp
$Comp
L neo900:L0402 L704
U 1 1 578BA28C
P 3600 5500
F 0 "L704" V 3541 5350 50  0000 L BNN
F 1 "DNP" V 3730 5350 50  0000 L BNN
F 2 "NeoFeet:L_0402" H 3590 5290 65  0001 L TNN
F 3 "" H 3600 5500 60  0001 C CNN
	1    3600 5500
	1    0    0    -1  
$EndComp
$Comp
L neo900:R0402 R703
U 1 1 578BA674
P 3800 1600
F 0 "R703" H 3670 1660 50  0000 L BNN
F 1 "100k" H 3800 1600 50  0000 C CNN
F 2 "NeoFeet:R_0402" H 3830 1750 20  0001 C CNN
F 3 "" H 3800 1600 60  0001 C CNN
	1    3800 1600
	1    0    0    -1  
$EndComp
$Comp
L neo900:R0402 R701
U 1 1 578BA804
P 1800 2400
F 0 "R701" H 1670 2460 50  0000 L BNN
F 1 "0" H 1800 2400 50  0000 C CNN
F 2 "NeoFeet:R_0402" H 1830 2550 20  0001 C CNN
F 3 "" H 1800 2400 60  0001 C CNN
	1    1800 2400
	0    -1   -1   0   
$EndComp
$Comp
L neo900:R0402 R702
U 1 1 578BA994
P 3200 5200
F 0 "R702" H 3070 5260 50  0000 L BNN
F 1 "0" H 3200 5200 50  0000 C CNN
F 2 "NeoFeet:R_0402" H 3230 5350 20  0001 C CNN
F 3 "" H 3200 5200 60  0001 C CNN
	1    3200 5200
	1    0    0    -1  
$EndComp
$Comp
L neo900:R0402 R707
U 1 1 578BAA5C
P 7000 6000
F 0 "R707" H 6870 6060 50  0000 L BNN
F 1 "10k" H 7000 6000 50  0000 C CNN
F 2 "NeoFeet:R_0402" H 7030 6150 20  0001 C CNN
F 3 "" H 7000 6000 60  0001 C CNN
	1    7000 6000
	1    0    0    -1  
$EndComp
$Comp
L neo900:R0402 R706
U 1 1 578BAB24
P 6900 7350
F 0 "R706" H 6770 7410 50  0000 L BNN
F 1 "10k" H 6900 7350 50  0000 C CNN
F 2 "NeoFeet:R_0402" H 6930 7500 20  0001 C CNN
F 3 "" H 6900 7350 60  0001 C CNN
	1    6900 7350
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0125
U 1 1 578BABEC
P 3600 6000
F 0 "#U$0125" H 3510 5900 70  0001 L BNN
F 1 "GND" H 3510 5900 70  0001 L BNN
F 2 "" H 3600 6000 60  0001 C CNN
F 3 "" H 3600 6000 60  0001 C CNN
	1    3600 6000
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0126
U 1 1 578BAC50
P 2800 6000
F 0 "#U$0126" H 2710 5900 70  0001 L BNN
F 1 "GND" H 2710 5900 70  0001 L BNN
F 2 "" H 2800 6000 60  0001 C CNN
F 3 "" H 2800 6000 60  0001 C CNN
	1    2800 6000
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0127
U 1 1 578BACB4
P 1900 6050
F 0 "#U$0127" H 1810 5950 70  0001 L BNN
F 1 "GND" H 1810 5950 70  0001 L BNN
F 2 "" H 1900 6050 60  0001 C CNN
F 3 "" H 1900 6050 60  0001 C CNN
	1    1900 6050
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0128
U 1 1 578BAF0C
P 1800 2750
F 0 "#U$0128" H 1710 2650 70  0001 L BNN
F 1 "GND" H 1710 2650 70  0001 L BNN
F 2 "" H 1800 2750 60  0001 C CNN
F 3 "" H 1800 2750 60  0001 C CNN
	1    1800 2750
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0129
U 1 1 578BAF70
P 2000 3850
F 0 "#U$0129" H 1910 3750 70  0001 L BNN
F 1 "GND" H 1910 3750 70  0001 L BNN
F 2 "" H 2000 3850 60  0001 C CNN
F 3 "" H 2000 3850 60  0001 C CNN
	1    2000 3850
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0130
U 1 1 578BB038
P 9300 3750
F 0 "#U$0130" H 9210 3650 70  0001 L BNN
F 1 "GND" H 9210 3650 70  0001 L BNN
F 2 "" H 9300 3750 60  0001 C CNN
F 3 "" H 9300 3750 60  0001 C CNN
	1    9300 3750
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0131
U 1 1 578BB484
P 6200 3750
F 0 "#U$0131" H 6110 3650 70  0001 L BNN
F 1 "GND" H 6110 3650 70  0001 L BNN
F 2 "" H 6200 3750 60  0001 C CNN
F 3 "" H 6200 3750 60  0001 C CNN
	1    6200 3750
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0132
U 1 1 578BB4E8
P 9700 3750
F 0 "#U$0132" H 9610 3650 70  0001 L BNN
F 1 "GND" H 9610 3650 70  0001 L BNN
F 2 "" H 9700 3750 60  0001 C CNN
F 3 "" H 9700 3750 60  0001 C CNN
	1    9700 3750
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0133
U 1 1 578BB5B0
P 5100 5900
F 0 "#U$0133" H 5010 5800 70  0001 L BNN
F 1 "GND" H 5010 5800 70  0001 L BNN
F 2 "" H 5100 5900 60  0001 C CNN
F 3 "" H 5100 5900 60  0001 C CNN
	1    5100 5900
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0134
U 1 1 578BB614
P 5600 6500
F 0 "#U$0134" H 5510 6400 70  0001 L BNN
F 1 "GND" H 5510 6400 70  0001 L BNN
F 2 "" H 5600 6500 60  0001 C CNN
F 3 "" H 5600 6500 60  0001 C CNN
	1    5600 6500
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0135
U 1 1 578BB678
P 4700 7850
F 0 "#U$0135" H 4610 7750 70  0001 L BNN
F 1 "GND" H 4610 7750 70  0001 L BNN
F 2 "" H 4700 7850 60  0001 C CNN
F 3 "" H 4700 7850 60  0001 C CNN
	1    4700 7850
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0136
U 1 1 578BB7A4
P 7200 7850
F 0 "#U$0136" H 7110 7750 70  0001 L BNN
F 1 "GND" H 7110 7750 70  0001 L BNN
F 2 "" H 7200 7850 60  0001 C CNN
F 3 "" H 7200 7850 60  0001 C CNN
	1    7200 7850
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0137
U 1 1 578BB808
P 7450 7000
F 0 "#U$0137" H 7360 6900 70  0001 L BNN
F 1 "GND" H 7360 6900 70  0001 L BNN
F 2 "" H 7450 7000 60  0001 C CNN
F 3 "" H 7450 7000 60  0001 C CNN
	1    7450 7000
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0138
U 1 1 578BB86C
P 7100 7000
F 0 "#U$0138" H 7010 6900 70  0001 L BNN
F 1 "GND" H 7010 6900 70  0001 L BNN
F 2 "" H 7100 7000 60  0001 C CNN
F 3 "" H 7100 7000 60  0001 C CNN
	1    7100 7000
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0139
U 1 1 578BB8D0
P 6400 8350
F 0 "#U$0139" H 6310 8250 70  0001 L BNN
F 1 "GND" H 6310 8250 70  0001 L BNN
F 2 "" H 6400 8350 60  0001 C CNN
F 3 "" H 6400 8350 60  0001 C CNN
	1    6400 8350
	1    0    0    -1  
$EndComp
$Comp
L neo900:PE2459 U705
U 1 1 578BBA60
P 6900 3350
F 0 "U705" H 7300 3000 50  0000 R CNN
F 1 "PE4259" H 6900 3700 50  0000 C CNN
F 2 "neo900-legacy:SC70-6" H 6930 3500 20  0001 C CNN
F 3 "" H 6900 3350 60  0001 C CNN
	1    6900 3350
	-1   0    0    1   
$EndComp
$Comp
L neo900:LMV221SD-WRONGPACK U704
U 1 1 578BBBF0
P 6100 6200
F 0 "U704" H 5800 6550 60  0000 L CNN
F 1 "LMV221SD" H 6100 5850 60  0000 C CNN
F 2 "dfn:DFN-6-0.65mm" H 6090 5990 65  0001 L TNN
F 3 "" H 6100 6200 60  0001 C CNN
	1    6100 6200
	1    0    0    -1  
$EndComp
$Comp
L neo900:LMV221SD-WRONGPACK U703
U 1 1 578BBCB8
P 5200 7550
F 0 "U703" H 4900 7900 60  0000 L CNN
F 1 "LMV221SD" H 5200 7200 60  0000 C CNN
F 2 "dfn:DFN-6-0.65mm" H 5190 7340 65  0001 L TNN
F 3 "" H 5200 7550 60  0001 C CNN
	1    5200 7550
	1    0    0    -1  
$EndComp
$Comp
L neo900:CONNECT-POINTN900-A P703
U 1 1 578BBF10
P 1750 5700
F 0 "P703" H 1750 5600 60  0000 C CNN
F 1 "CELL_GND" H 1850 5700 50  0000 L CNN
F 2 "NeoFeet:N900-SPRING-A" H 1740 5490 65  0001 L TNN
F 3 "" H 1750 5700 60  0001 C CNN
	1    1750 5700
	-1   0    0    1   
$EndComp
$Comp
L neo900:CONNECT-POINTN900-A P705
U 1 1 578BBFD8
P 2050 5700
F 0 "P705" H 2050 5600 60  0000 C CNN
F 1 "CELL_GND" H 2150 5700 50  0000 L CNN
F 2 "NeoFeet:N900-SPRING-A" H 2040 5490 65  0001 L TNN
F 3 "" H 2050 5700 60  0001 C CNN
	1    2050 5700
	1    0    0    1   
$EndComp
$Comp
L neo900:CONNECT-POINTN900-A P704
U 1 1 578BC0A0
P 1900 5400
F 0 "P704" H 1850 5400 60  0000 R CNN
F 1 "CELL_RF" H 2000 5400 50  0000 L CNN
F 2 "NeoFeet:N900-SPRING-A" H 1890 5190 65  0001 L TNN
F 3 "" H 1900 5400 60  0001 C CNN
	1    1900 5400
	-1   0    0    1   
$EndComp
Text GLabel 2900 1600 0    60   Input ~ 0
VGNSS
Text GLabel 8100 1600 2    60   Input ~ 0
VGNSS_OVERRIDE
Text GLabel 7500 2450 0    60   Input ~ 0
1V8
Text GLabel 1600 2150 0    60   Output ~ 0
ANT_GNSS_DC
Text GLabel 9900 3350 2    60   Output ~ 0
GNSS_IN
Text Label 4550 3150 0    30   ~ 0
ANT_GNSS
Text GLabel 9300 5200 2    60   UnSpc ~ 0
CELL_ANT_TRX
Text GLabel 8400 6400 2    60   Input ~ 0
2V7
Text GLabel 8400 6000 2    60   Output ~ 0
ADC1
Text GLabel 14100 2100 2    60   UnSpc ~ 0
CELL_ANT_DRX
Text GLabel 8400 7350 2    60   Output ~ 0
ADC2
NoConn ~ 6700 6200
NoConn ~ 5800 7550
Text GLabel 6600 7750 2    60   Input ~ 0
2V7
Text GLabel 4000 1000 2    60   Output ~ 0
VGNSS_SENSE
Text GLabel 3800 2200 0    60   Input ~ 0
1V8
$Comp
L neo900:BGM1034N7 U701
U 1 1 578BB998
P 3300 3150
F 0 "U701" H 2900 3500 70  0000 R CNN
F 1 "BGM1034N7" H 3100 2300 70  0000 L BNN
F 2 "NeoFeet:TSNP-7-10" H 3290 2940 65  0001 L TNN
F 3 "" H 3300 3150 60  0001 C CNN
	1    3300 3150
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0140
U 1 1 57E5D83B
P 4100 3400
F 0 "#U$0140" H 4010 3300 70  0001 L BNN
F 1 "GND" H 4010 3300 70  0001 L BNN
F 2 "" H 4100 3400 60  0001 C CNN
F 3 "" H 4100 3400 60  0001 C CNN
	1    4100 3400
	1    0    0    -1  
$EndComp
$Comp
L opt-mini-rf-tap:MINI-RF-TAP-SW J701
U 1 1 57E5715C
P 9500 3350
F 0 "J701" H 9400 3500 50  0000 L CNN
F 1 "GNSS_IN" H 9500 3200 50  0000 C CNN
F 2 "NeoFeet:SW_MM8930-2600" H 9530 3500 20  0001 C CNN
F 3 "" H 9500 3350 60  0001 C CNN
	1    9500 3350
	1    0    0    -1  
$EndComp
Text Notes 5700 9000 0    60   ~ 0
The RC filter should have C large enough\nenough to hold a charge in pulsed operation,\nyet be fast enough to detect short activity.\nWith 10 kOhm and 1 nF, we get about 16 kHz.\n
$Comp
L neo900:CPL-WBF-00D3 U702
U 1 1 57E5B979
P 5000 5300
F 0 "U702" H 4600 5550 50  0000 L CNN
F 1 "CPL-WBF-00D3" H 5000 5450 50  0000 C CNN
F 2 "CPL-WBF-00D3:CPL-WBF-00D3" H 5030 5450 20  0001 C CNN
F 3 "" H 5000 5300 60  0001 C CNN
	1    5000 5300
	1    0    0    -1  
$EndComp
$Comp
L slg46533v:SLG46533V U706
U 1 1 57E5929E
P 12400 7250
F 0 "U706" H 11900 7800 60  0000 L CNN
F 1 "SLG46533V" H 12600 6650 60  0000 L CNN
F 2 "NeoFeet:STQFN-20" H 12400 7250 60  0001 C CNN
F 3 "" H 12400 7250 60  0001 C CNN
	1    12400 7250
	1    0    0    -1  
$EndComp
Text Label 8300 6200 0    60   ~ 0
CELL_INBOUND
Text Label 8300 7900 0    60   ~ 0
CELL_OUTBOUND
$Comp
L neo900:C0402 C710
U 1 1 57E5A20B
P 11600 7800
F 0 "C710" H 11640 7840 50  0000 L CNN
F 1 "100n" H 11640 7670 50  0000 L CNN
F 2 "NeoFeet:C_0402" H 11630 7950 20  0001 C CNN
F 3 "" H 11600 7800 60  0001 C CNN
	1    11600 7800
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0141
U 1 1 57E5A29A
P 11600 8200
F 0 "#U$0141" H 11510 8100 70  0001 L BNN
F 1 "GND" H 11510 8100 70  0001 L BNN
F 2 "" H 11600 8200 60  0001 C CNN
F 3 "" H 11600 8200 60  0001 C CNN
	1    11600 8200
	1    0    0    -1  
$EndComp
Text GLabel 11400 6950 0    60   Input ~ 0
1V8
$Comp
L neo900:GND #U$0142
U 1 1 57E5AE66
P 13200 8200
F 0 "#U$0142" H 13110 8100 70  0001 L BNN
F 1 "GND" H 13110 8100 70  0001 L BNN
F 2 "" H 13200 8200 60  0001 C CNN
F 3 "" H 13200 8200 60  0001 C CNN
	1    13200 8200
	1    0    0    -1  
$EndComp
Text GLabel 12300 8200 3    60   Input ~ 0
I2C2_SCL
Text GLabel 12400 8200 3    60   BiDi ~ 0
I2C2_SDA
$Comp
L neo900:L0402 L705
U 1 1 57E8A246
P 11300 2400
F 0 "L705" V 11241 2250 50  0000 L BNN
F 1 "DNP" V 11430 2250 50  0000 L BNN
F 2 "NeoFeet:L_0402" H 11290 2190 65  0001 L TNN
F 3 "" H 11300 2400 60  0001 C CNN
	1    11300 2400
	1    0    0    -1  
$EndComp
$Comp
L neo900:C0402 C709
U 1 1 57E8A2D7
P 11500 2100
F 0 "C709" V 11550 1950 50  0000 R CNN
F 1 "0R" V 11450 1850 50  0000 L CNN
F 2 "NeoFeet:C_0402" H 11530 2250 20  0001 C CNN
F 3 "" H 11500 2100 60  0001 C CNN
	1    11500 2100
	0    -1   -1   0   
$EndComp
$Comp
L neo900:L0402 L706
U 1 1 57E8A34D
P 11900 2400
F 0 "L706" V 11841 2250 50  0000 L BNN
F 1 "DNP" V 12030 2250 50  0000 L BNN
F 2 "NeoFeet:L_0402" H 11890 2190 65  0001 L TNN
F 3 "" H 11900 2400 60  0001 C CNN
	1    11900 2400
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0143
U 1 1 57E8AEF6
P 11300 2800
F 0 "#U$0143" H 11210 2700 70  0001 L BNN
F 1 "GND" H 11210 2700 70  0001 L BNN
F 2 "" H 11300 2800 60  0001 C CNN
F 3 "" H 11300 2800 60  0001 C CNN
	1    11300 2800
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0144
U 1 1 57E8B285
P 11900 2800
F 0 "#U$0144" H 11810 2700 70  0001 L BNN
F 1 "GND" H 11810 2700 70  0001 L BNN
F 2 "" H 11900 2800 60  0001 C CNN
F 3 "" H 11900 2800 60  0001 C CNN
	1    11900 2800
	1    0    0    -1  
$EndComp
Text GLabel 10600 2100 0    60   UnSpc ~ 0
FM_TX
$Comp
L neo900:C0402 C708
U 1 1 57E8A7D1
P 10850 2100
F 0 "C708" V 10900 1950 50  0000 R CNN
F 1 "0R" V 10800 1850 50  0000 L CNN
F 2 "NeoFeet:C_0402" H 10880 2250 20  0001 C CNN
F 3 "" H 10850 2100 60  0001 C CNN
	1    10850 2100
	0    -1   -1   0   
$EndComp
Text Notes 1800 3050 0    70   ~ 0
50 Ohm
Text Notes 8300 3250 0    70   ~ 0
50 Ohm
Text Notes 12400 2000 0    70   ~ 0
50 Ohm
Text Notes 3900 5100 0    70   ~ 0
50 Ohm
Text Label 1750 3150 0    30   ~ 0
GNSS_RF
Text Label 3950 5200 0    30   ~ 0
CELL_RF_TUNE
Text Label 7950 3350 0    30   ~ 0
GNSS_IN_TAP
NoConn ~ 11700 7250
NoConn ~ 11700 7150
NoConn ~ 11700 7050
NoConn ~ 12500 7950
$Comp
L powered:POWERED #FLG0145
U 1 1 580A096E
P 1800 1850
F 0 "#FLG0145" H 2000 1750 60  0001 C CNN
F 1 "POWERED" H 1800 1900 60  0000 C CNN
F 2 "" H 1800 1850 60  0001 C CNN
F 3 "" H 1800 1850 60  0001 C CNN
	1    1800 1850
	1    0    0    -1  
$EndComp
Text Notes 4300 4800 0    120  ~ 0
Modem TX monitor
Text Notes 9000 6000 0    70   ~ 14
TODO: see if we can keep ADC1 and ADC2.\n(The Silego can act as ADC by varying the PWM voltages.)
$Comp
L neo900:C0402 C712
U 1 1 581931C3
P 14600 9450
F 0 "C712" H 14640 9490 50  0000 L CNN
F 1 "1u" H 14640 9320 50  0000 L CNN
F 2 "NeoFeet:C_0402" H 14630 9600 20  0001 C CNN
F 3 "" H 14600 9450 60  0001 C CNN
	1    14600 9450
	1    0    0    -1  
$EndComp
$Comp
L neo900:C0402 C711
U 1 1 5819325B
P 14250 9450
F 0 "C711" H 14290 9490 50  0000 L CNN
F 1 "1u" H 14290 9320 50  0000 L CNN
F 2 "NeoFeet:C_0402" H 14280 9600 20  0001 C CNN
F 3 "" H 14250 9450 60  0001 C CNN
	1    14250 9450
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0146
U 1 1 58193AB0
P 14250 9850
F 0 "#U$0146" H 14160 9750 70  0001 L BNN
F 1 "GND" H 14160 9750 70  0001 L BNN
F 2 "" H 14250 9850 60  0001 C CNN
F 3 "" H 14250 9850 60  0001 C CNN
	1    14250 9850
	1    0    0    -1  
$EndComp
$Comp
L neo900:GND #U$0147
U 1 1 58193B74
P 14600 9850
F 0 "#U$0147" H 14510 9750 70  0001 L BNN
F 1 "GND" H 14510 9750 70  0001 L BNN
F 2 "" H 14600 9850 60  0001 C CNN
F 3 "" H 14600 9850 60  0001 C CNN
	1    14600 9850
	1    0    0    -1  
$EndComp
$Comp
L neo900:R0402 R711
U 1 1 581946A3
P 9500 8900
F 0 "R711" H 9370 8960 50  0000 L BNN
F 1 "2M" H 9500 8900 50  0000 C CNN
F 2 "NeoFeet:R_0402" H 9530 9050 20  0001 C CNN
F 3 "" H 9500 8900 60  0001 C CNN
	1    9500 8900
	0    -1   -1   0   
$EndComp
$Comp
L neo900:R0402 R713
U 1 1 58194AEF
P 9800 8900
F 0 "R713" H 9670 8960 50  0000 L BNN
F 1 "2M" H 9800 8900 50  0000 C CNN
F 2 "NeoFeet:R_0402" H 9830 9050 20  0001 C CNN
F 3 "" H 9800 8900 60  0001 C CNN
	1    9800 8900
	0    -1   -1   0   
$EndComp
$Comp
L neo900:R0402 R710
U 1 1 58195874
P 9500 8200
F 0 "R710" H 9370 8260 50  0000 L BNN
F 1 "5M" H 9500 8200 50  0000 C CNN
F 2 "NeoFeet:R_0402" H 9530 8350 20  0001 C CNN
F 3 "" H 9500 8200 60  0001 C CNN
	1    9500 8200
	0    -1   -1   0   
$EndComp
$Comp
L neo900:R0402 R712
U 1 1 58195922
P 9800 8200
F 0 "R712" H 9670 8260 50  0000 L BNN
F 1 "5M" H 9800 8200 50  0000 C CNN
F 2 "NeoFeet:R_0402" H 9830 8350 20  0001 C CNN
F 3 "" H 9800 8200 60  0001 C CNN
	1    9800 8200
	0    -1   -1   0   
$EndComp
$Comp
L neo900:R0402 R708
U 1 1 58195B97
P 9500 6500
F 0 "R708" H 9370 6560 50  0000 L BNN
F 1 "5M" H 9500 6500 50  0000 C CNN
F 2 "NeoFeet:R_0402" H 9530 6650 20  0001 C CNN
F 3 "" H 9500 6500 60  0001 C CNN
	1    9500 6500
	0    -1   -1   0   
$EndComp
$Comp
L neo900:R0402 R709
U 1 1 58195C39
P 9500 7250
F 0 "R709" H 9370 7310 50  0000 L BNN
F 1 "2M" H 9500 7250 50  0000 C CNN
F 2 "NeoFeet:R_0402" H 9530 7400 20  0001 C CNN
F 3 "" H 9500 7250 60  0001 C CNN
	1    9500 7250
	0    -1   -1   0   
$EndComp
$Comp
L neo900:GND #U$0148
U 1 1 58195E05
P 9500 7650
F 0 "#U$0148" H 9410 7550 70  0001 L BNN
F 1 "GND" H 9410 7550 70  0001 L BNN
F 2 "" H 9500 7650 60  0001 C CNN
F 3 "" H 9500 7650 60  0001 C CNN
	1    9500 7650
	1    0    0    -1  
$EndComp
Wire Wire Line
	7500 2450 7500 3150
Wire Wire Line
	6700 6400 6800 6400
Wire Wire Line
	7100 6400 7100 6500
Wire Wire Line
	6800 6500 6800 6400
Connection ~ 7100 6400
Connection ~ 6800 6400
Wire Wire Line
	7450 6000 7450 6500
Connection ~ 7450 6000
Wire Wire Line
	7100 7350 7200 7350
Connection ~ 7200 7350
Wire Wire Line
	4000 3150 6300 3150
Wire Wire Line
	1600 2150 1800 2150
Wire Wire Line
	9300 3450 9300 3650
Wire Wire Line
	3600 5700 3600 5900
Wire Wire Line
	2800 5700 2800 5900
Wire Wire Line
	6300 3350 6200 3350
Wire Wire Line
	6200 3350 6200 3550
Wire Wire Line
	6200 3550 6300 3550
Connection ~ 6200 3550
Wire Wire Line
	2000 3450 2000 3750
Wire Wire Line
	1500 3450 2000 3450
Wire Wire Line
	2200 3850 2500 3850
Wire Wire Line
	2200 3450 2200 3850
Wire Wire Line
	4100 3050 4100 3300
Wire Wire Line
	3600 3850 3600 3650
Connection ~ 2000 3450
Wire Wire Line
	9700 3650 9700 3450
Wire Wire Line
	4900 5700 5100 5700
Wire Wire Line
	5100 5600 5100 5700
Connection ~ 5100 5700
Wire Wire Line
	6800 6800 7100 6800
Wire Wire Line
	7100 6800 7100 6900
Connection ~ 7100 6800
Wire Wire Line
	6400 8250 6400 8150
Wire Wire Line
	3300 1000 4000 1000
Wire Wire Line
	1500 3150 2500 3150
Wire Wire Line
	4700 5600 4700 7350
Wire Wire Line
	5300 5600 5300 6000
Wire Wire Line
	5300 6000 5600 6000
Wire Wire Line
	3000 2550 3000 2650
Wire Wire Line
	4000 6200 5600 6200
Wire Wire Line
	6700 6000 6800 6000
Wire Wire Line
	1900 5200 1900 5400
Wire Wire Line
	3400 2650 3400 2550
Wire Wire Line
	4100 2200 4100 2550
Wire Wire Line
	4000 1600 4400 1600
Wire Wire Line
	3600 2550 3600 2650
Wire Wire Line
	4100 2550 3600 2550
Wire Wire Line
	4400 1600 4400 3750
Wire Wire Line
	3000 3650 3000 3750
Wire Wire Line
	3000 3750 4400 3750
Connection ~ 4100 2550
Wire Wire Line
	7200 6000 7450 6000
Wire Wire Line
	5800 7750 6400 7750
Wire Wire Line
	6400 7750 6400 7850
Connection ~ 6400 7750
Wire Wire Line
	1750 5700 1750 5850
Wire Wire Line
	1750 5850 1900 5850
Wire Wire Line
	2050 5850 2050 5700
Wire Wire Line
	1900 5950 1900 5850
Connection ~ 1900 5850
Wire Wire Line
	5800 7350 6700 7350
Wire Wire Line
	7450 6800 7450 6900
Wire Wire Line
	7500 3550 7700 3550
Wire Wire Line
	7700 3550 7700 1600
Connection ~ 7700 1600
Wire Wire Line
	2900 1600 3300 1600
Wire Wire Line
	3300 1000 3300 1600
Connection ~ 3300 1600
Connection ~ 4400 1600
Wire Wire Line
	3800 2200 4100 2200
Wire Wire Line
	2500 3300 2500 3150
Connection ~ 2500 3150
Wire Wire Line
	2500 3700 2500 3850
Connection ~ 2500 3850
Wire Wire Line
	7200 7450 7200 7350
Wire Wire Line
	7500 3350 9300 3350
Wire Wire Line
	9700 3350 9900 3350
Wire Wire Line
	2800 5300 2800 5200
Connection ~ 2800 5200
Wire Wire Line
	3600 5200 3600 5300
Connection ~ 3600 5200
Wire Wire Line
	3000 4800 2900 4800
Wire Wire Line
	2900 4800 2900 5200
Connection ~ 2900 5200
Wire Wire Line
	3300 4800 3500 4800
Wire Wire Line
	3500 4800 3500 5200
Connection ~ 3500 5200
Wire Wire Line
	4900 5600 4900 5700
Wire Wire Line
	9300 5200 5600 5200
Wire Wire Line
	3400 5200 3500 5200
Wire Wire Line
	7700 7900 7700 7350
Connection ~ 7700 7350
Wire Wire Line
	7800 6200 7800 6000
Connection ~ 7800 6000
Wire Wire Line
	11600 8100 11600 8000
Wire Wire Line
	11400 6950 11600 6950
Wire Wire Line
	11600 7700 11600 6950
Connection ~ 11600 6950
Wire Wire Line
	13200 8100 13200 7550
Wire Wire Line
	13200 7550 13100 7550
Wire Wire Line
	12300 8200 12300 7950
Wire Wire Line
	12400 8200 12400 7950
Wire Wire Line
	11300 2200 11300 2100
Wire Wire Line
	11050 2100 11300 2100
Wire Wire Line
	11900 2200 11900 2100
Wire Wire Line
	11700 2100 11900 2100
Wire Wire Line
	11300 2600 11300 2700
Wire Wire Line
	11900 2600 11900 2700
Connection ~ 11900 2100
Connection ~ 11300 2100
Wire Wire Line
	10750 2100 10600 2100
Wire Notes Line
	4500 3200 4500 3100
Wire Notes Line
	4500 3100 6200 3100
Wire Notes Line
	6200 3100 6200 3200
Wire Notes Line
	6200 3200 4500 3200
Wire Notes Line
	7850 3300 7850 3400
Wire Notes Line
	7850 3400 9150 3400
Wire Notes Line
	9150 3400 9150 3300
Wire Notes Line
	9150 3300 7850 3300
Wire Notes Line
	1650 3200 1650 3100
Wire Notes Line
	1650 3100 2350 3100
Wire Notes Line
	2350 3100 2350 3200
Wire Notes Line
	2350 3200 1650 3200
Wire Wire Line
	1800 2650 1800 2600
Wire Wire Line
	1800 2050 1800 2150
Wire Notes Line
	12050 2150 12050 2050
Wire Notes Line
	13950 2050 13950 2150
Wire Notes Line
	13950 2150 12050 2150
Wire Notes Line
	5700 5250 5700 5150
Wire Notes Line
	9150 5150 9150 5250
Wire Notes Line
	9150 5250 5700 5250
Wire Notes Line
	3900 5250 3900 5150
Wire Notes Line
	3900 5150 4350 5150
Wire Notes Line
	4350 5150 4350 5250
Wire Notes Line
	4350 5250 3900 5250
Wire Notes Line
	5700 5150 9150 5150
Wire Wire Line
	1900 5200 2800 5200
Wire Notes Line
	12050 2050 13950 2050
Connection ~ 1800 2150
Wire Wire Line
	14600 9650 14600 9750
Wire Wire Line
	14250 9750 14250 9650
Wire Wire Line
	9500 8400 9500 8600
Wire Wire Line
	9800 8400 9800 8500
Wire Wire Line
	9500 7550 9500 7450
Wire Wire Line
	9500 6700 9500 6800
Connection ~ 9500 8600
Connection ~ 9800 8500
Wire Wire Line
	7700 7900 9500 7900
Wire Wire Line
	9800 7900 9800 8000
Wire Wire Line
	9500 8000 9500 7900
Connection ~ 9500 7900
Wire Wire Line
	7800 6200 9500 6200
Wire Wire Line
	9500 6200 9500 6300
Wire Wire Line
	9500 6800 11000 6800
Connection ~ 9500 6800
NoConn ~ 11700 7350
Wire Wire Line
	13100 7450 13750 7450
Wire Wire Line
	13750 7450 13750 9250
Wire Wire Line
	13950 7250 13950 8950
Wire Wire Line
	13950 8950 10900 8950
$Comp
L neo900:R0402 R716
U 1 1 58199DCD
P 14250 8850
F 0 "R716" H 14120 8910 50  0000 L BNN
F 1 "100k" H 14250 8850 50  0000 C CNN
F 2 "NeoFeet:R_0402" H 14280 9000 20  0001 C CNN
F 3 "" H 14250 8850 60  0001 C CNN
	1    14250 8850
	0    -1   -1   0   
$EndComp
$Comp
L neo900:R0402 R717
U 1 1 58199F11
P 14600 8850
F 0 "R717" H 14470 8910 50  0000 L BNN
F 1 "100k" H 14600 8850 50  0000 C CNN
F 2 "NeoFeet:R_0402" H 14630 9000 20  0001 C CNN
F 3 "" H 14600 8850 60  0001 C CNN
	1    14600 8850
	0    -1   -1   0   
$EndComp
Wire Wire Line
	14250 9050 14250 9150
Wire Wire Line
	14600 9050 14600 9250
Wire Wire Line
	14250 9150 10000 9150
Connection ~ 14250 9150
Wire Wire Line
	9800 9250 13750 9250
Connection ~ 14600 9250
Connection ~ 13750 9250
Text Label 11500 9150 0    60   ~ 0
CELL_PWM_IN_V
Text Label 11500 9250 0    60   ~ 0
CELL_PWM_OUT_V
Wire Wire Line
	14250 7150 14250 8650
Wire Wire Line
	14600 7050 14600 8650
Wire Wire Line
	13100 7250 13950 7250
Wire Wire Line
	13100 7150 14250 7150
Wire Wire Line
	13100 7050 14600 7050
Wire Wire Line
	12500 6450 12500 6550
Wire Wire Line
	13350 6250 12400 6250
Wire Wire Line
	12400 6250 12400 6550
Text GLabel 13350 6250 2    60   Output ~ 0
CELL_DETECT_IRQ
Text Label 13900 6950 0    60   ~ 0
CELL_MON_OUT_EN
NoConn ~ 12300 6550
Text Label 13150 7150 0    60   ~ 0
CELL_PWM_IN
Text Label 13150 7050 0    60   ~ 0
CELL_PWM_OUT
Wire Wire Line
	4000 6200 4000 8100
Text Label 13900 6450 0    60   ~ 0
CELL_MON_IN_EN
$Comp
L neo900:R0402 R714
U 1 1 581B4773
P 10000 6500
F 0 "R714" H 9870 6560 50  0000 L BNN
F 1 "5M" H 10000 6500 50  0000 C CNN
F 2 "NeoFeet:R_0402" H 10030 6650 20  0001 C CNN
F 3 "" H 10000 6500 60  0001 C CNN
	1    10000 6500
	0    -1   -1   0   
$EndComp
$Comp
L neo900:R0402 R715
U 1 1 581B4FF0
P 10000 7250
F 0 "R715" H 9870 7310 50  0000 L BNN
F 1 "2M" H 10000 7250 50  0000 C CNN
F 2 "NeoFeet:R_0402" H 10030 7400 20  0001 C CNN
F 3 "" H 10000 7250 60  0001 C CNN
	1    10000 7250
	0    -1   -1   0   
$EndComp
Wire Wire Line
	10000 6200 10000 6300
Connection ~ 9500 6200
Wire Wire Line
	10000 6700 10000 6900
$Comp
L neo900:GND #U$0149
U 1 1 581B595A
P 9500 9300
F 0 "#U$0149" H 9410 9200 70  0001 L BNN
F 1 "GND" H 9410 9200 70  0001 L BNN
F 2 "" H 9500 9300 60  0001 C CNN
F 3 "" H 9500 9300 60  0001 C CNN
	1    9500 9300
	1    0    0    -1  
$EndComp
Wire Wire Line
	9500 9100 9500 9200
Wire Wire Line
	9800 9250 9800 9100
Wire Wire Line
	10000 9150 10000 7450
Wire Wire Line
	9500 8600 11000 8600
Wire Wire Line
	10000 6900 10900 6900
Connection ~ 10000 6900
Wire Wire Line
	11000 7450 11700 7450
Wire Wire Line
	11000 6800 11000 7450
Text Notes 11100 7450 0    60   ~ 0
ACMP01+
Text Notes 11100 7550 0    60   ~ 0
ACMP0-
Text Label 10200 8600 0    60   ~ 0
OUT_DIV
Text Label 10200 8500 0    60   ~ 0
OUT_DIV_BIAS
Text Label 10200 6900 0    60   ~ 0
IN_DIV_BIAS
Text Label 10200 6800 0    60   ~ 0
IN_DIV
Wire Wire Line
	13100 7350 13850 7350
Wire Wire Line
	13850 7350 13850 8850
Wire Wire Line
	13850 8850 11000 8850
Wire Wire Line
	11000 8850 11000 8600
Wire Wire Line
	10900 6900 10900 8950
Text Notes 13150 7350 0    60   ~ 0
ACMP23+
Text Notes 13150 7250 0    60   ~ 0
ACMP2-
Text Notes 13150 7450 0    60   ~ 0
ACMP0123-
$Comp
L neo900:R0402 R704
U 1 1 581BD23E
P 4000 8300
F 0 "R704" H 3870 8360 50  0000 L BNN
F 1 "100k" H 4000 8300 50  0000 C CNN
F 2 "NeoFeet:R_0402" H 4030 8450 20  0001 C CNN
F 3 "" H 4000 8300 60  0001 C CNN
	1    4000 8300
	0    -1   -1   0   
$EndComp
$Comp
L neo900:R0402 R705
U 1 1 581BD67C
P 4250 8300
F 0 "R705" H 4120 8360 50  0000 L BNN
F 1 "100k" H 4250 8300 50  0000 C CNN
F 2 "NeoFeet:R_0402" H 4280 8450 20  0001 C CNN
F 3 "" H 4250 8300 60  0001 C CNN
	1    4250 8300
	0    -1   -1   0   
$EndComp
Wire Wire Line
	12500 6450 15000 6450
Wire Wire Line
	13100 6950 14900 6950
Wire Wire Line
	9800 8500 11000 8500
Wire Wire Line
	11000 8500 11000 7550
Wire Wire Line
	11000 7550 11700 7550
Text Label 11500 8950 0    60   ~ 0
IN_DIV_BIAS
Text Label 11500 8850 0    60   ~ 0
OUT_DIV
Wire Wire Line
	4250 8100 4250 7550
Wire Wire Line
	4250 7550 4700 7550
Wire Wire Line
	14900 6950 14900 10100
Wire Wire Line
	14900 10100 4250 10100
Wire Wire Line
	4250 10100 4250 8500
Wire Wire Line
	15000 6450 15000 10200
Wire Wire Line
	15000 10200 4000 10200
Wire Wire Line
	4000 10200 4000 8500
Text Notes 4600 1400 0    120  ~ 0
GPS monitor and override
Text Notes 11200 1700 0    120  ~ 0
Cellular diversity
Text Notes 12550 8500 0    60   ~ 0
I2C: 0x68-0x6f
Wire Wire Line
	7100 6400 8400 6400
Wire Wire Line
	6800 6400 7100 6400
Wire Wire Line
	7450 6000 7800 6000
Wire Wire Line
	7200 7350 7700 7350
Wire Wire Line
	6200 3550 6200 3650
Wire Wire Line
	2000 3450 2200 3450
Wire Wire Line
	5100 5700 5100 5800
Wire Wire Line
	4100 2550 4100 2750
Wire Wire Line
	6400 7750 6600 7750
Wire Wire Line
	1900 5850 2050 5850
Wire Wire Line
	7700 1600 8100 1600
Wire Wire Line
	3300 1600 3600 1600
Wire Wire Line
	4400 1600 7700 1600
Wire Wire Line
	2500 3150 2600 3150
Wire Wire Line
	2500 3850 3600 3850
Wire Wire Line
	2800 5200 2900 5200
Wire Wire Line
	3600 5200 4400 5200
Wire Wire Line
	2900 5200 3000 5200
Wire Wire Line
	3500 5200 3600 5200
Wire Wire Line
	7700 7350 8400 7350
Wire Wire Line
	7800 6000 8400 6000
Wire Wire Line
	11600 6950 11700 6950
Wire Wire Line
	11900 2100 14100 2100
Wire Wire Line
	11300 2100 11400 2100
Wire Wire Line
	1800 2150 1800 2200
Wire Wire Line
	9500 8600 9500 8700
Wire Wire Line
	9800 8500 9800 8700
Wire Wire Line
	9500 7900 9800 7900
Wire Wire Line
	9500 6800 9500 7050
Wire Wire Line
	14250 9150 14250 9350
Wire Wire Line
	14600 9250 14600 9350
Wire Wire Line
	13750 9250 14600 9250
Wire Wire Line
	9500 6200 10000 6200
Wire Wire Line
	10000 6900 10000 7050
$EndSCHEMATC
